This successor to Macmillan's "International Encyclopedia of Population" provides expanded, up-to-date coverage of demographic topics both in the core field and in neighboring disciplines. Designed to encompass the large-scale changes in emphasis and research directions in population studies during the last 20 years, topics covered include: rapid demographic expansion in poor countries, low fertility rates and problems of old-age support, the environmental impact of dense population; the press for expanded reproductive rights; and much more.